398044057589 has 2 divisors, whose sum is σ = 398044057590. Its totient is φ = 398044057588.

The previous prime is 398044057517. The next prime is 398044057657. The reversal of 398044057589 is 985750440893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374752108900 + 23291948689 = 612170^2 + 152617^2 .

It is an emirp because it is prime and its reverse (985750440893) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398044057589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398044051589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199022028794 + 199022028795.

It is an arithmetic number, because the mean of its divisors is an integer number (199022028795).

Almost surely, 2^398044057589 is an apocalyptic number.

It is an amenable number.

398044057589 is a deficient number, since it is larger than the sum of its proper divisors (1).

398044057589 is an equidigital number, since it uses as much as digits as its factorization.

398044057589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 398044057589 in words is "three hundred ninety-eight billion, forty-four million, fifty-seven thousand, five hundred eighty-nine".